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Gravity powered devices => Gravity powered devices => Topic started by: iacob alex on August 12, 2019, 02:13:59 PM

Title: Gravity linear motor...
Post by: iacob alex on August 12, 2019, 02:13:59 PM
.....starting with an elementary electric linear motor concept , at :
     https://www.explainthatstuff.com/linearmotor.html (https://www.explainthatstuff.com/linearmotor.html)
.....but developing this one , maybe as a helping point of view , or an analogue gravity / mechanical linear motor ( gravity field as an "unwrapped " stator...).
     Let's begin with : https://youtu.be/5zKXe68D0CY (https://youtu.be/5zKXe68D0CY)
                               https://youtu.be/-uxBq6PhMKQ
     Al_ex
Title: Re: Gravity linear motor...
Post by: iacob alex on August 14, 2019, 12:46:11 PM
.....starting with :
     https://en.m.wikipedia.org/wiki/Linear_motor
     https://en.m.wikipedia.org/wiki/Stator
.....when the stator...drives the rotor.
     Now , replacing the stator with the gravitational field and the rotor with :
     www.geocities.ws/iacob_alex/Some_Drafts/text013.jpg
.....intended to produce a gravity linear motion ("motor"...) , due to a continuous gravity unbalance on the same side of the fulcrum .
     Have we the same concept ...when the stator/gravity ...drives the rotor?!
     Al_ex
Title: Re: Gravity linear motor...
Post by: seychelles on August 14, 2019, 04:54:42 PM
GREAT WORK KEEP IT UP.
Title: Re: Gravity linear motor...
Post by: Grimer on August 16, 2019, 10:02:57 AM
.....starting with :
     https://en.m.wikipedia.org/wiki/Linear_motor (https://en.m.wikipedia.org/wiki/Linear_motor)
     https://en.m.wikipedia.org/wiki/Stator (https://en.m.wikipedia.org/wiki/Stator)
.....when the stator...drives the rotor.
     Now , replacing the stator with the gravitational field and the rotor with :
     www.geocities.ws/iacob_alex/Some_Drafts/text013.jpg (http://www.geocities.ws/iacob_alex/Some_Drafts/text013.jpg)
.....intended to produce a gravity linear motion ("motor"...) , due to a continuous gravity unbalance on the same side of the fulcrum .




     Have we the same concept ...when the stator/gravity ...drives the rotor?!
     Al_ex
I think our trains are both headed to the same destination, both inspired by Laithwaite's ghost.  8)
If you think of NG as magnetic field acting vertically and EG as acting horizontally and the two being
out of phase then we have the classic motor fields arrangement. The energy comes from earth reaction
both horizontal and vertical so that angular and linear momentum are conserved.


Will the earth lose its bearings and career off into space as some might fear?
No, because on average the momenta abstracted will balance out.


The continuous gravity unbalance you refer to actually takes place with the rubber band engine.
I have a video of the engine somewhere.


Supposedly it gets its energy from heat applied to the elasitic bands but as I have pointed out
on the Bessler forum the expansion and contraction of the rubber is adiabatic and so heat is
only needed to replace losses. These losses can be eliminated by insulation.


I have a video of the RBM (rubber-band-motor) somewhere. I'll find it and post it here.
It's and Engine in the US and a Motor in Britain.  ;)

Title: Re: Gravity linear motor...
Post by: Grimer on August 16, 2019, 05:17:18 PM
Here is a screen shot of the RBM.


I think the video originated with Cornell University but they no longer host it.
Title: Re: Gravity linear motor...
Post by: Grimer on August 16, 2019, 05:22:14 PM

Here is the video.

https://frankgrimer.uk/rubber_band_motor.mp4 (https://frankgrimer.uk/rubber_band_motor.mp4)


There are several other versions on YouTube but they are all pretty crap as you might expect.
I believe Bill Beaty has investigated this motor and found that the bands had to be stretched to
almost the breaking point for the motor to work well.